Replace the General/Combat/Chat menu

The current menu is too restrictive.

A new menu must be created.

1. It should be split in three tabs as the current one is
2. The individual text items must be object that we can alter at will programmatically
3. The player should be able to select and highlight them
4. The same text item/object should support multiple colours. And should be able to switch the colour at will (so we can nightlight specific words and so on)
5. If the message is a text message from another player, then must store a player reference on the item so we can find the sender later

This is a huge issue. Feel free to split into multiple issues